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Self-drilling screws are manufactured for use in wood, fiberglass and metal. They possess a drill point which enables the screw to drill its own hole in thin gauge steel. The sharp threads create their own mating thread when drilled into the material and provide a stronger grip to your surface.
HILLMAN™ Self-Drilling Screw, 1/4-20 Thread, USS Coarse Thread, 1-1/2 in Overall Length, Hex Washer Head, External Hex Drive, Self-Drilling Point, Steel, Finish: Zinc-Plated, Silver
| Color | : | Silver |
| Drive Type | : | External Hex |
| Finish | : | Zinc-Plated |
| Head Type | : | Hex Washer |
| Material | : | Steel |
| Overall Length | : | 1-1/2 in |
| Point Type | : | Self-Drilling |
| Thread Size | : | 1/4-20 |
| Thread Type | : | USS Coarse |